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Chemistry

  The Chemistry Place Chemistry Science Projects Encyclopedia: Chemistry Interactive Periodic Table Encyclopedia: Compounds and Elements Encyclopedia: Organic…

DK Science: Relativity

ACCURATE TIMEKEEPINGBIOGRAPHY: ALBERT EINSTEIN German, 1879–1955FIND OUT MOREEinstein realized that the speed of light is always the same. He then calculated that an object travelling near this…

Chemistry: A Quantum Leap into Quantum Mechanics

A Quantum Leap into Quantum MechanicsChemistryThe Modern AtomBohr: What Is It Good For?Spectroscopy: Reading Between the LinesA Quantum Leap into Quantum Mechanics Unfortunately for Bohr, his…

Saint Aidan

Saint Aidan The founder of a great center of Celtic Christianity by Ann-Marie Imbornoni St. Aidan (died 651) According to the historian Bede, Aidan was an Irish monk on the island of Iona when…

Ancient Calendars

Source: National Institute of Standards and Technology Physics Laboratory Celestial bodies—the sun, moon, planets, and stars > have provided us a reference for measuring the passage of time…

DK Science: Jupiter

THE GALILEAN MOONSJUPITER’S ATMOSPHEREJUPITER’S LIGHTSFIND OUT MOREJupiter is the biggest planet in our Solar System, eleven times bigger in diameter than Earth and two and a half times more…

DK Science: Neptune

BLUE PLANETNEPTUNE’S RINGSTRITON’S GEYSERSFIND OUT MOREAlmost the same size and colour as Uranus, Neptune orbits about 1.6 billion km (1.0 billion miles) further from the Sun than Uranus.…

DK Science: Pluto

ICE WORLDPLUTO’S ORBITPLUTO AND CHARONBIOGRAPHY: CLYDE TOMBAUGH American, 1906-1997FIND OUT MOREEven smaller than our Moon, Pluto is by far the smallest planet. It was the last planet to be…

DK Science: Uranus

THE RINGS OF URANUSBLAND ATMOSPHERETHE BIG FIVEBIOGRAPHY: WILLIAM HERSCHEL German, 1738-1822FIND OUT MOREEnglish astronomer William Herschel discovered Uranus in 1781. It was the first planet…